Lightning Version History
55 versions
Be careful with old versions!
These versions are displayed for reference and testing purposes. You should always use the latest version of an add-on.
Version 5.4
Released April 20, 2017
4.7 MiB
Works with
SeaMonkey 2.49 - 2.49.*, Thunderbird 52.0 - 52.*
Version 4.7.8
Released April 7, 2017
4.7 MiB
Works with
SeaMonkey 2.42 - 2.42.*, Thunderbird 45.8.0 - 45.*
Version 4.7.7
Released April 7, 2017
4.7 MiB
Works with
SeaMonkey 2.42 - 2.42.*, Thunderbird 45.7.0 - 45.*
Version 4.7.6
Released April 5, 2017
4.7 MiB
Works with
SeaMonkey 2.42 - 2.42.*, Thunderbird 45.6.0 - 45.*
Version 4.7.5
Released April 5, 2017
4.7 MiB
Works with
SeaMonkey 2.42 - 2.42.*, Thunderbird 45.5.0 - 45.*
Version 4.7.4
Released Oct. 16, 2016
4.7 MiB
Works with
SeaMonkey 2.42 - 2.42.*, Thunderbird 45.0 - 45.*
Version 4.7.3
Released Oct. 16, 2016
4.7 MiB
Works with
SeaMonkey 2.42 - 2.42.*, Thunderbird 45.0 - 45.*
Version 4.7.2
Released Oct. 16, 2016
4.7 MiB
Works with
SeaMonkey 2.42 - 2.42.*, Thunderbird 45.2.0 - 45.*
Version 4.7.1
Released Oct. 16, 2016
4.7 MiB
Works with
SeaMonkey 2.42 - 2.42.*, Thunderbird 45.1.0 - 45.*
Version 4.7
Released April 25, 2016
4.7 MiB
Works with
SeaMonkey 2.42 - 2.42.*, Thunderbird 45.0 - 45.*
Version 4.0.5.2
Released Jan. 21, 2016
6.3 MiB
Works with
SeaMonkey 2.35 - 2.35.*, Thunderbird 38.0 - 38.*
Version 4.0.4.1
Released Nov. 30, 2015
6.3 MiB
Works with
SeaMonkey 2.35 - 2.35.*, Thunderbird 38.0 - 38.*
Version 4.0.3.1
Released Oct. 8, 2015
6.3 MiB
Works with
SeaMonkey 2.35 - 2.35.*, Thunderbird 38.3.0 - 38.*
Version 4.0.2.1
Released Sept. 16, 2015
6.3 MiB
Works with
SeaMonkey 2.35 - 2.35.*, Thunderbird 38.0 - 38.*
Version 4.0.2
Released Aug. 14, 2015
6.3 MiB
Works with
SeaMonkey 2.35 - 2.35.*, Thunderbird 38.0 - 38.*
Version 4.0.1.2
Released July 23, 2015
6.4 MiB
Works with
SeaMonkey 2.35 - 2.35.*, Thunderbird 38.0 - 38.*
Version 4.0.1
Released July 8, 2015
6.3 MiB
Works with
SeaMonkey 2.35 - 2.35.*, Thunderbird 38.0 - 38.*
Version 4.0.0.1
Released June 12, 2015
6.3 MiB
Works with
SeaMonkey 2.35 - 2.35.*, Thunderbird 38.0 - 38.*
Version 3.3.3
Released Jan. 28, 2015
4.3 MiB
Works with
SeaMonkey 2.28 - 2.28.*, Thunderbird 31.0 - 31.*
* Added locales cy, fi, pt-BR, tr.
Version 3.3.2
Released Dec. 27, 2014
4.1 MiB
Works with
SeaMonkey 2.28 - 2.28.*, Thunderbird 31.0 - 31.*
* Fixed locales that went missing in Lightning 3.3.1gd and lt locales.
Version 3.3.1
Released Sept. 23, 2014
4.0 MiB
Works with
SeaMonkey 2.28 - 2.28.*, Thunderbird 31.0 - 31.*
Version 3.3
Released July 21, 2014
4.0 MiB
Works with
SeaMonkey 2.28 - 2.28.*, Thunderbird 31.0 - 31.*
Version 2.6.6
Released June 19, 2014
3.5 MiB
Works with
SeaMonkey 2.21 - 2.21.*, Thunderbird 24.1.1 - 24.*
Version 2.6.5
Released May 13, 2014
3.5 MiB
Works with
SeaMonkey 2.21 - 2.21.*, Thunderbird 24.1.1 - 24.*
Version 2.6.4
Released Dec. 11, 2013
2.4 MiB
Works with
SeaMonkey 2.21 - 2.21.*, Thunderbird 24.1.1 - 24.*
Version 2.6.3
Released Nov. 19, 2013
3.5 MiB
Works with
SeaMonkey 2.21 - 2.21.*, Thunderbird 24.1.1 - 24.*
Version 2.6.2
Released Oct. 29, 2013
3.5 MiB
Works with
SeaMonkey 2.21 - 2.21.*, Thunderbird 24.1.0 - 24.1.0
Version 2.6.1
Released Oct. 13, 2013
3.5 MiB
Works with
SeaMonkey 2.21 - 2.21.*, Thunderbird 24.0.1 - 24.0.1
Version 2.6
Released Sept. 11, 2013
3.5 MiB
Works with
SeaMonkey 2.21 - 2.21, Thunderbird 24.0 - 24.0
On Windows, the binary component is now signed. This avoids issues with some virus scanners. It is now possible to make a recurring event finite without opening the custom recurrence dialog (see your event dialog). You can now create a monthly recurring event on the last day of the month. Events can have multiple categories, selection is available in the event dialog. Updated to the latest timezone information 2013d. Its now more obvious what to do when no calendars support email invitations. Support for Google Calendar via CalDAV using their new v2 endpoint. Mac and Linux now support overlay scrollbars, giving you more room in the month view. Some view related performance fixes. Important Information :
If you are using Google Calendar via CalDAV, you MUST upgrade to the newest endpoint. Please see
this blog post for more details.
Version 1.9.1
Released March 6, 2013
2.6 MiB
Works with
SeaMonkey 2.14 - 2.14.*, Thunderbird 17.0 - 17.*
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